Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Hīlōtae, ārum, m., = Εἵλωτες, the original inhabitants of the city Helos (Ἕλος), in Laconia, afterwards the bondsmen of the Spartans, the Helots, Nep. Paus. 3, 6.
Called also Ilotae, ārum, Liv. 34, 27, 9.